<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="textml; charset=utf-8" />
<title></title>
<style>
#div1{
	width:150px;
	height:200px;
	background:#666;
	position: absolute;
	left: -150px;
}
#div1 span{
	position: absolute;
	width:20px;
	height:60px;
	line-height: 20px;
	background: pink;
	right: -20px;
	top:70px;
}
</style>

<script type="text/javascript">
   window.onload=function ()
	{
           var oDiv=document.getElementById('div1');
          oDiv.onmouseover=function ()
           {
              startMove(0);
           };
           oDiv.onmouseout=function ()
           {   
              startMove(-150);

           };
	};

    var timer=null;
	function startMove(tag)
	{   
		   var oDiv=document.getElementById('div1');
		   clearInterval(timer);
		timer=setInterval(function ()
		{    var speed=0;
			if(oDiv.offsetLeft>tag)
			{  
				speed=-10;
				
			}
			else
			{
				speed=10;

			}
            if(oDiv.offsetLeft==tag)
            {
              	clearInterval(timer);
            }
            else
            {
              	oDiv.style.left=oDiv.offsetLeft+speed+'px';
            }
  
        },30);
	};
</script>
</head>
<body>
<div id="div1">
<span>分享到</span>
</div>

</body>
</html>
